Stephen B. Heppe, Ph.D.
Dr. Heppe has over 25 years experience in the area of communications engineering with General Electric Space Division, Stanford Telecommunications, Telenergy and the Insitu Group. Dr. Heppe has also served as an independent consultant and expert witness in satellite communications, GPS/cellular and radio technologies, CATV user interfaces, cell networks, GSM and Voice over IP (VoIP). He has developed aircraft avionics, including data radios, GPS navigation, satellite communications, video processing, RF transmission and sensors and flight control, as well as VHF radio communications protocol for aircraft networking, spectrum engineering for satellite communications (Globalstar), mobile satellite systems and various space based Government systems including Defense Satellite Communications System (DSCS), the Strategic Defense System (SDS), spaced based radar (SBR), Milstar, NASA Tracking and Data Relay Satellite system (TDRSS), various naval satellite systems and the network for the US Air Force Consolidated Space Operations Center (CSOC). Dr. Heppe is familiar with GPS position and velocity determination for aircraft, spacecraft and ground vehicles, differential GPS and automatic dependent surveillance (ADS), navigation accuracy determination, flight testing hardware and software and protocol development and signal processing. Dr. Heppe has testified in numerous patent cases and in an ITC matter. He has published several articles and holds 2 US patents in the aforementioned technologies. He received a BSEE degree (Computer Science emphasis) from Princeton University in 1977 and his MS and Ph. D. degree in Electrical Engineering (Communications emphasis) from George Washington University in 1982 and 1989, respectively. View Full CV

1026
This expert is a professor in electrical engineering and patent holder. He is an experienced expert witness with numerous expert witness assignments including deposition and trial testimony.

• Information Theory
• Communication Theory
• Multiterminal Source Coding
• Wireless Telephony Theory ; Random Signals.
• Robust Communication Networks
• Signature Verification and Compression
• Identification/verification; Random Fields
• Video Compression; Speaker; Data Compression
• Rate Distortion; Videocodec Development

1028
Expert has over twenty-five years of experience in all areas of wireless communications, including wireless LAN technologies, frequency-hop and direct sequence spread spectrum systems, DBS and VSAT satellite communications, cellular & PCS radio design including CDMA and TDMA, RF design for CATV and DOCSIS, and OFDM broadband wireless. Experienced legal consultant in patent assessment and litigation support with testifying experience, and technology due diligence analysis for venture capital investment.

• CDMA
• TDMA
• OFDM
• Cable
• DOCSIS/Cable
• PCS/Cellular
• WiMAX
• RF Design
• Satellite Communications
• Spread-Spectrum
• Wireless LAN

1030
Expert has a Ph.D. in Electrical Engineering from Stanford University and has over 12 years of experience in the telecommunications field. His field of work includes cellular, two-way paging systems and wireless home LAN systems. He has been responsible for firmware, hardware, software and systems engineering for products for the GPRS market. He has recently been involved in the formation of a new company to develop wireless network infrastructure for 802.11. He has six patents and has been involved in two expert witness engagements, including one that generated a positive outcome verdict for over $100m.

• Digital Signal Processing
• Wireless Communication Protocols
• Wireless Equipment Hardware and Software Design and Implementation
• DSL technology
• Coding Techniques
• OSI Layers
• Network Operations

1065
This expert holds a Ph.D. in Computer Science from MIT. He is a seasoned technology expert and business professional with over 10 years of hands-on contributions as a thought leader, technologist, consultant, entrepreneur, and author. He is an expert in computer software systems, with particular emphasis on distributed systems and architectures, service-oriented architectures (SOAs) and Web Services, end-to-end security, quality-of-service (QoS), as well as mobile and wireless systems and applications. He is the author of a book on developing enterprise computing systems, which has been adopted by over 100 universities worldwide and also by corporate customers. Expert has extensive experience in architecting, developing, optimizing, deploying and managing complex computing systems throughout the world, and technical expertise in developing enterprise-class applications using J2EE, XML, SOAP Web services, and mobile technologies. He has invented, architected, and led the development (product, QA, documentation) as well as the initial sales & marketing efforts for key eBusiness, mobile, Web services, and J2EE middleware products and solutions. He is an experienced expert witness with numerous expert witness assignments.

• J2EE Application Servers
• Servlets / JSPs / EJBs
• Web Services & Service Oriented Architectures (SOAs)
• SOAP, WSDL, UDDI
• Portals & Portlets
• Optimized Mobile/Wireless Systems
• POS terminals, PDAs, Phones and other mobile devices
• Security & Authentication
• Financial Transactioning
• Programming Languages, including C, C++, Java, and tools including Jbuilder and IntelliJ
• Operating Systems, including Windows, Linux and Palm O

1077
Expert is regarded in the industry as a bar code pioneer. He was the founder of the first company to design and manufacture bar code scanning equipment. His history with bar codes goes back to the mid-1960s when he was project manager for the rail car identification project at Sylvania/GTE. He worked and traveled across the globe in pursuit of bar code`s early adoption and in the process he earned a reputation as the "father" of the bar code industry. He has since received many honors for his work. His vast experience has been called upon by numerous companies and agencies to assist in the planning and design responsibility for bar code applications in manufacturing and distribution management. He is an experienced expert witness with numerous expert witness assignments including deposition and trial testimony.

• Bar Codes and Scanning Systems
• Automatic Identification Technology
• RFID
• Hardware Configuration
• Labeling & Printing
• Code Systems Integration

1094
Expert has over 30 years of experience in the Industry he holds a Ph.D. and few patents. His Primary focus is consulting to the semiconductor industry with an emphasis on plasma technology. In addition, he has provided consulting services in areas of vacuum technology and material analysis. He is an experienced expert witness with numerous expert witness assignments.

• Equipment Automation
• Litigation Support
• Low Temperature Methods
• Magnetism
• Material Analysis
• Plasma Technology
• Power RF and Microwaves
• Project Management
• Semiconductor Equipment Design
• Vacuum Technology

1102
Expert`s experiences have included high power klystron design, millimeter-wave radiometer and antenna design, radio telescope antenna and microwave hardware design, HF antenna design for ionospheric sounding, electrically-despun satellite antenna design, millimeter-wave high-gain autotracking antenna design, payload design for INTELSAT V and VII satellites, system design for Globalstar Satellite Cellular System, antennas for tracking high data rate satellites, phased array satellite receiving antenna design, system engineering and proposal preparation on various satellite projects.

• Antenna Design, HF / VHF / UHF / Microwave
• Antenna Pattern and Gain Measurement Capability
• Passive RF Hardware (matching circuits, etc.) Design
• Communication Satellite Link Analysis
• Satellite Communication Hardware and System Design
• Electromagnetic Interference Measurements & Problem Solving
• Electromagnetic Field Safety Issues and Field Measurements

1109
Expert has been involved in innovative wireless telecommunications network, product, and service development for over thirty years. His primary interests and expertise lie in the areas of wireless network strategic analysis and engineering. He has a proven record of successful product and network design and optimization, both as a developer and as a technical manager. As a result of his work with some of the industry`s most innovative companies and published articles, he has developed an international reputation as an expert in a wide range of wireless technologies and their applications. Throughout his career in the wireless industry, he has been at the forefront of product, system, and network development. Along the way, he has been awarded several patents for strategic innovations. Most recently, his work has included optimization and analysis of fourth generation ("4G") wireless applications. He is an experienced expert witness with numerous expert witness assignments including deposition and trial testimony.

• Wireless Telecommunications
• Wireless Standards
• Wireless Network Optimization
• Wireless Technology Analysis
• Wireless Technology Applications
• Wireless Handset Functionality
• Wireless Industry Practices
• Cellular and PCS Networks
• CDMA, GSM, and TDMA systems
• Historical Contexts of Wireless

1121
This expert has over 23 years of industry experience with a focus on communications technology. He is an accomplished network architect, with a focus on protocol design and analysis. He currently serves as the Technical Director of the Wi-Fi Alliance, an association of over 150 manufacturers of Wireless LAN products based upon the IEEE 802.11 standard (known as Wi-Fi). He is past chairman of the IEEE 802.3 Broadband CSMA/CD committee, and was Editor, IEEE 802.11 Wireless LAN Committee. This expert has extensive experience as a litigation support expert, in particular in intellectual property disputes.

• Wireless LAN
• ATM
• Ethernet & Token Ring
• FDDI
• Fiber-to-the-Curb
• Frame Relay
• Hybrid Fiber Coax
• IDSN
• Intelligent Networks
• PCM T1-T3
• SONET
• TCP/IP & HTTP Protocols

1128
This expert has over 10 years experience in wireless, telecommunications and cellular systems. In addition, he also holds patents within his field and has experience in litigation support.

• Wireless Data Networks
• Wireless Communication Systems
• Packet Data Systems
• Cellular Networks
• Facsimile
• Spread Spectrum
• Hosted Environments
• TCP/IP,HTTP,SMTP

1141
This expert currently serves as Professor of Electrical & Computer Engineering and Professor of Media Arts & Technology at a major California research university. Previously, he was Chairman of the Department of Electrical Engineering at Southern Methodist University in Dallas, Texas and he held the J. W. Runyon, Jr. Professorship in the Department of Electrical Engineering at Texas A&M University. He has over 35 years of experience in communications, signal compression, and wireless technologies. In his field he is extensively published, a frequent speaker/presenter, and patent holder.

• Data Compression
• Speech Compression
• Audio Compression
• Telecommunications Networks
• Digital Signal Processing
• Video Compression
• Image Compression
• Wireless Communications
• Multiuser Communications
• Adaptive filtering
• Multimedia over Networks

1142
Industrial experience includes work as a wireless manager with principal efforts in analysis and design of cellular, fixed wireless and WLAN networks. Previous experience also includes work on secure formatted message traffic employing multi-media communications including HR radios, satellites and landlines. Involved in the design and analysis of spread spectrum communications systems for military applications. Taught graduate and undergraduate classes primarily in communications. Publication of text on Detection and Estimation theory with a co-author anticipated in fall, 2006.

• Cellular Communications
• Spread Spectrum Communications
• Wireless Communications
• Digital Signal Processing
• Military Communications
• Propagation Analysis
• Electromagnetic Interference
• Detection and Estimation

1143
This expert has over 25 years of experience in telecommunications.

• Carrier-grade voice-over-IP / VoIP
• Internet telephony / IP telephone
• Circuit-switched networks / PSTN
• Digital cable networks & unauthorized access
• Network-based enhanced services
• Computer-telephony integration
• Videoconferencing systems & protocols
• • WAN & LAN network architectures
• Software design & implementation
• Intellectual property: analysis of claims, specification, prior art & market value
• Venture capital finance for tech ventures

1164
30 years of experience in producing cost effective, high performance, products implemented with state of the art technology. Taught at 3 major engineering schools, visiting professor at University of San Diego, and is writing the textbook - "MicroComputer System and Software Design". This expert is well known and versed in the necessary parallel supporting disciplines to develop state of the art RF solutions; microprocessor system design and programming, DSP (Digital Signal Processing), antennas and communications technology. His extensive experience includes the design and manufacture RF systems and the associated engineering technologies of RF systems, RF equipment, DSP processing, and antennas from ELF through EHF. He has extensive experience in both teaching and lecturing on RF & RFID design and supporting technologies in both the academic and professional environments.

• RF (Radio Frequency) transmitters, receivers, matching networks, and antennas
• Computer Telephony
• Digital Signal Processing
• Digital Switching
• MicroProcessor Hardware, Programming, and System Design
• High Volume Manufacturing
• PBX and Key System Technology
• Voice Response Technology
• Wireless Technology

1177
Expert is a Ph.D. in Electrical Engineering from Cornell University and over 30 years of experience with computer architecture, microprocessor and DSP applications and hold 2 patents. He has worked for major semiconductor manufacturers as an engineering manager and chief scientist. He also has over 10 years of experience as a professor and lecturer at, both, Cornell University and the University of California, Irvine. His body of work includes products ranging from simple consumer products to complex telecommunications gear. He has previous expert witness and testifying. He has expertise and is able to serve as an expert witness in the following: Computer Architecture, Semiconductor Technology, Embedded Control Systems, Computer Software & Firmware, Technical Training, Microprocessor Design, Microcontroller Applications, and Digital Signal Processing.

• Computer Architecture
• Semiconductor Technology
• Embedded Control Systems
• Computer Software & Firmware
• Technical Training
• Microprocessor Design
• Microcontroller Applications
• Digital Signal Processing

1195
This expert has over 20 years of experience in mobile computing, wireless data networks, and system architecture. He currently is a professor at a major research university in their mobile computing department. In addition to his academic experiences, this expert also has over 15 years in the consulting and litigation support fields. He is also a patent author and is well published in his field.

• Software Engineering
• Mobile Computing
• Wireless Data (RF & IR)
• Network Integration
• System & Server OS
• Network Design
• System Architecture
• Embedded Systems
• Bluetooth Applications
• Software Quality

1202
This expert has over 35 years experience in communications and wireless technology. In addition, he has been working as a consultant and litigation support expert in these fields for over 10 years. His experience has taken place primarily within private industry, but he also has worked in the academic environment. He is published in his field and is a patent author.

• Digital Transmission - T1, T3, DDS, OC-3, OC-12
• Voice and Data Communications and Technologies
• Digital Multiplexing: Channel Banks, Digital Loop Carrier, SONET Multiplexers
• DACS Systems
• Digital Transmission Systems
• Billing Systems
• Switching Systems
• Transport Technologies: SONET, ATM, Frame Relay, TCP/IP
• Voice-over-IP, Voice Compression Methods
• Analog and Digital Hardware Design
• Software Design and Management
• Engineering Management and Design Processes
• Product Management and Marketing
• General Management in Telecommunications

1266
Expert has corporate business executive and entrepreneurial experience in designing and implementing successful telecommunications marketing and public relations campaigns in the US and globally; a history of involvement in entrepreneurial ventures; experienced in general management, public relations and marketing in the telecommunications industry; a reputation for being a self-starting, highly motivated and innovative entrepreneur and manager; published author, editor and publisher; strong managerial and communications skills; conversant in Spanish, German and Italian, and social skills in other languages. He is currently Editor-in Chief of a publication devoted to the prepaid telecom industry and writes for Phone+, Intelecard News, Telecom Business and Communications Week. As a telecommunications industry analyst he has expertise to serve as an expert witness in the matters concerning marketing & sales in the industry. He has consulted on 10 cases and been deposed in three of those.

• Telecom Switching Systems
• Long Distance Services
• Wireless Networks
• Prepaid Telecom Market
• Regulatory History & Policy
• International Telecom
• Telecommunications Industry Analyst

1280
Expert has over thirty years of experience in electrical engineering, optical engineering, and metrology engineering. His activity has included designing and developing RF and microwave products for clients. Products designed include 5.8GHz short-range radar transceivers, 2.4GHz wireless video devices, GSM and DCS cellular telephone RF front-end, 900 and 2.4GHz high-dynamic range receivers for WAN applications, 900 MHz automatic meter reading transmitters, receivers, and transceivers, 400MHz short-range transmitters and receivers for keyless entry and property location, and wide variety of smaller RF design projects including expert witness assignments. Expert holds two patents is published and has prior expert witness experience.

• Radio frequency engineering
• Microwave engineering
• Analog engineering
• Power conversion engineering
• Communications systems eng.
• Product development
• Circuit board and box design
• Test and measure

1289
in the area of digital communications and mobile radio systems, error control coding, multiple access communications, as well as analog and digital implementation implementations. He holds a Ph.D. is a patent holder and is extensively published.

• Digital Communications - Modulation, Spread-Spectrum, Synchronization
• Mobile Communications - Channel Modeling, MIMO Channels, Signaling
• Error Control Coding - Trellis Coding, Turbo Coding, Error Correction Techniques
• Multiple Access Systems - CDMA, Joint Detection, Multiple Access Protocols
• Multiple Antenna Systems - Diversity, Space-Time Coding, Channel Measurements

1296
Expert develops solutions for advanced RF systems for use in Communications, Navigation, Radar, and Emitter Location Systems. Since graduating from Columbia University he worked as a signal processing specialist and RF systems architect. Areas of expertise include the Global Positioning System (GPS) programs, but supported several other programs in a consulting role including designs work for 802.11 and other network technologies. His work has resulted in a number of patents and publications.

• GPS Technology
• Indoor GPS / Assisted GPS
• Radar & RFID Signal Processing
• Cellular Telephony (GSM, CDMA, 3G)
• Spread Spectrum
• Satellite Communications
• Emitter Location
• RF Signal Processing

1300
Expert has over 35 years experience in the computer industry, specializing in computer network architecture, systems, and product design. He was one of the original developers of the 10 Mb/s Ethernet technology at Digital Equipment Corporation, and is now a consultant, providing services to a wide range of network, semiconductor, and computer systems manufacturers, investors, and users. He taught graduate-level courses at the University of California for over 15 years, has published two best-selling technology treatises, and has chaired and co-authored numerous international standards for computer communications. He has served as a technology consultant and testifying expert to law firms in more than a dozen cases over the past ten years. He is an advisor to numerous venture capital investors, has founded high-tech companies both in the U.S. and abroad and currently serves on the Executive Boards of a number of firms. He has participated in numerous cases as and expert witness.

• Bridges, Routers & Switches
• Communications Systems Analysis
• Ethernet, Token Ring, Local Talk
• LAN & WAN Design
• LAN Technology (Ethernet, Token Ring, FDDI, ATM & Wireless)
• Network Architecture
• Network Semiconductor Design
• Network Standards (IEEE, ANSI, OSI)
• Protocol Design & Implementation (TCP/IP, AppleTalk, IPX, OSI)
• TCP/IP, AppleTalk, IPX, OSI
• Technical Training

1301
More than 20 years experience managing multi-disciplinary teams developing wireless communications products for Fortune 500 companies and start-ups. Directly responsible for over 60 wireless projects with a strong focus on time-to-market and design for manufacturability. Experience with fixed wireless (802.16), cellular, GPS, packet radio, broadband wireless, wireless LAN (802.11), paging, wireless local loop (WLL), CDMA, TDMA, spread spectrum and satellite communications technologies.

• Antenna Design
• Satellite Systems Design
• Broadband Communication Systems
• Wireless Communication Systems
• Consumer Electronics design
• Telemetry Systems Design

1303
Expertise centers on warless and landline secure communications.

• Modems (Wireline / Satellite)
• Real-time signal processing
• Key Management Concepts
• Speech Processing (analysis/synthesis)
• Public Key (Asymmetric cryptography)
• Telephone line controllers
• Micro-processor implementation of HDW and algorithms
• Symmetric Encryption/Decryption using Programmable crypto device